| catecholamines and related o-diphenols in cockroach hemolymph and cuticle during sclerotization and melanization: comparative studies on the order dictyoptera. | catecholamines and related o-diphenols extracted from the cuticle and hemolymph of adult cockroaches during sclerotization and pigmentation of the cuticle were analyzed by reverse phase hplc with electrochemical detection. at ecdysis, dopamine (da) o-conjugates predominated in the hemolymph of periplaneta americana, p. australasiae, p. fuliginosa, p. brunnea, and blatta orientalis (blattidae); blattella germanica (blattellidae); and gromphadorhina portentosa and blaberus craniifer (blaberidae). ... | 1990 | 2391402 |
| the hypertrehalosaemic peptides of cockroaches: a phylogenetic study. | hypertrehalosaemic peptides from the corpora cardiaca of 14 different species were compared with respect to phylogenetic relationships within the insect suborder blattaria (cockroaches). gland extracts from members of the family blattidae (periplaneta americana, p. brunnea, p. australasiae, p. fuliginosa, and blatta orientalis) contain two hypertrehalosaemic octapeptides with identical properties to the recently sequenced peptides m i and m ii from the american cockroach, whereas corpora cardiac ... | 1989 | 2806876 |
| [vitellogenin in adult females of the cockroach, nauphoeta cinerea. immunologic studies on its origin and synthesis]. | | 1974 | 4445810 |
| immunological recognition of cuticular transplants in insects. | transplantation of allogeneic and xenogeneic cuticle onto the american cockroach, periplaneta americana, was carried out in order to compare the specificity of immune recognition of these 'skin grafts' with that of implanted tissues. in order to facilitate interpretation of results, the technique of transplanting cuticle from nymphal donors onto nymphal recipients was adopted - if donor subcuticular epidermis is not recognised as 'foreign', it will grow, fuse with the recipient's epidermal sheet ... | 1983 | 6341106 |
| cockroach surveys in 14 provinces of thailand. | cockroach surveys using sticky traps were conducted in urban areas of 14 thailand provinces. at least 30 houses in each province were randomly sampled for cockroaches. each house was trapped in three areas: kitchen, bedroom and outside. a total of 2,648 cockroaches was caught by 550 out of 1,542 traps (35.7%), from 337 of the 514 houses (65.6%). overall, relative density ranged from 2.6 to 9.1 with an average of 5.2 cockroaches/house. on the average, 47.7% of the cockroaches were caught in the k ... | 2001 | 11813661 |
| juvenile hormone and methyl farnesoate production in cockroach embryos in relation to dorsal closure and the reproductive modes of different species of cockroaches. | juvenile hormone (jh), produced by the corpora allata (ca), is first detectable after dorsal closure, a conspicuous event in embryogenesis. the present research found that the timing of dorsal closure was consistently at about 45% of the total embryonic development time across most of the oviparous and ovoviviparous cockroach species examined. these included the ovoviviparous cockroaches blaberus discoidalis, byrsotria fumigata, rhyparobia maderae, nauphoeta cinerea, phoetalia pallida, schultesi ... | 2007 | 18000875 |
| the effects of hunger and thirst on body weight and activity in the cockroach (nauphoeta cinerea). | | 2015 | 4661318 |
| histochemical studies on the nature of fat body lipids in relation to ovarian cycle in the viviparous cockroach nauphoeta cinerea (olivier). | | 2015 | 4426655 |
| conservation of ecdysis-triggering hormone signalling in insects. | pre-ecdysis- and ecdysis-triggering hormones (peth and eth) from endocrine inka cells initiate ecdysis in moths and drosophila through direct actions on the central nervous system (cns). using immunohistochemistry, we found inka cells in representatives of all major insect orders. in most insects, inka cells are numerous, small and scattered throughout the tracheal system. only some higher holometabolous insects exhibit 8-9 pairs of large inka cells attached to tracheae in each prothoracic and a ... | 2003 | 12624163 |
| presence of corazonin in three insect species, and isolation and identification of [his7]corazonin from schistocerca americana. | an elisa for corazonin, a cardioactive neuropeptide from the american cockroach, periplaneta americana, was developed. it was used to isolate corazonin from the cockroach nauphoeta cinerea, the locust schistocerca americana, and the hawkmoth manduca sexta. the peptides from nauphoeta and manduca had the same retention times as periplaneta corazonin, and their amino acid compositions also suggested that these peptides are identical with corazonin. the corazonin-immunoreactive peptide from schisto ... | 1991 | 1815215 |
| [histochemical localization of mucopolysaccharides in nauphoeta cinerea (blattoidea)]. | | 2002 | 135342 |
| alternative bioassay for the detection of saxitoxin using the speckled cockroach (nauphoeta cinerea). | paralytic shellfish poisoning (psp) toxins produced by cyanobacteria pose a risk to public health as they occur in drinking water reservoirs and recreational lakes and accumulate in the food chain. one of these psp toxins, saxitoxin (stx) is one of the most toxic nonprotein substances known. accordingly, there is a requirement to monitor for these toxins. the standard bioassay used to detect these toxins is the mouse bioassay; however, its use is constrained by animal ethics guidelines and pract ... | 2011 | 21432713 |
| central and peripheral neurotoxicity induced by the jack bean urease (jbu) in nauphoeta cinerea cockroaches. | ureases of canavalia ensiformis are natural insecticides with a still elusive entomotoxic mode of action. we have investigated the mechanisms involved in the neurotoxicity induced by jack bean urease (jbu) in nauphoeta cinerea (olivier). | 2016 | 27640743 |
| synoptic revision of blabericola (apicomplexa: eugregarinida: blabericolidae) parasitizing blaberid cockroaches (dictyoptera: blaberidae), with comments on delineating gregarine species boundaries. | complete synoptic redescriptions, including complete morphometric data for all life cycle stages, species recognition characters, and differential comparisons are presented for the 4 gregarine species comprising blabericola . blabericola cubensis ( peregrine, 1970 ), blabericola haasi (geus, 1969), blabericola migrator ( clopton, 1995 ), and blabericola princisi ( peregrine, 1970 ) are redescribed from their type hosts, i.e., the discoid cockroach blaberus discoidalis , the lobster cockroach nau ... | 2012 | 22150235 |
| amino acid sequence of a hypertrehalosaemic neuropeptide from the corpus cardiacum of the cockroach, nauphoeta cinerea. | the hypertrehalosaemic factor from the cockroach nauphoeta cinerea, a decapeptide, has been assigned the structure >glu-val-asn-phe-ser-pro-gly-trp-gly-thr-nh2. the structure was assigned from its high-resolution fast atom bombardment mass spectrum and metastable studies on the m + h ion and confirmed by solid phase synthesis. | 2013 | 3801028 |
| on the effect of ionophoretically applied dopamine on salivary gland cells of nauphoeta cinerea. | 1. responses to ionophoretically applied dopamine ('ionophoretic responses') have been recorded with an intracellular micro-electrode from acini of isolated salivary glands of the cockroach, nauphoeta cinerea. they resembled responses to nerve stimulation ('neural responses') but they usually decayed more slowly and were sometimes more rapid in onset. 2. as already described for neural resonses, ionophoretic responses (i) included a secondary phase of depolarization (although more rarely than ne ... | 1985 | 219185 |
| on the time course of the electrical response of salivary gland cells of nauphoeta cinerea to ionophoretically applied dopamine. | 1. an attempt has been made to account for the latency and slow time course of the electrical responses of salivary gland cells of nauphoeta cinerea (olivier) to nerve stimulation and ionophoretically applied dopamine from a pipette placed as close as possible to the acinar surface. 2. the effects have been investigated on the time course of the ionophoretic response of changes in the distance of the pipette from the acinar surface and of the amount of dopamine ejected. 3. the observed changes w ... | 1985 | 219186 |
| toxicity induced by prasiola crispa to fruit fly drosophila melanogaster and cockroach nauphoeta cinerea: evidence for bioinsecticide action. | the adverse effects of the alga prasiola crispa extract (pce) were investigated in a fruit fly (drosophila melanogaster) and cockroach (nauphoeta cinerea) model. in flies, toxicity was assessed as mortality and biochemical alterations including acetylcholinesterase (ache) activity and oxidative stress markers. the cardiotoxic action of pce was also examined in a model of semi-isolated cockroach heart. the administration of pce (2 mg/ml) to flies for 24 h resulted in a marked increase in mortalit ... | 2014 | 24555652 |
| structure of the hypertrehalosemic neuropeptide of the german cockroach, blattella germanica. | the structure of the hypertrehalosemic neuropeptide of the german cockroach, blattella germanica, was found to be identical to that of the cockroach species, blaberus discoidalis and nauphoeta cinerea (glp-val-asn-phe-ser-pro-gly-trp-gly-thr-nh2). since blattella germanica is not closely related to blaberus discoidalis and nauphoeta cinerea, this supports the hypothesis that in this peptide family evolution of peptide structure may be related to evolution of peptide function. | 1990 | 2080017 |
| vasopressin-immunoreactive neurons and neurohemal systems in cockroaches and mantids. | vasopressin-like neuropeptides of insects are of special interest because of their possible function as hormones and neuromodulators. therefore, this study was undertaken by using whole-mount immunofluorescent staining by two antisera that recognize different types of vasopressin-like immunoreactive groups of neurons in the cockroaches periplaneta americana, leucophaea maderae, nauphoeta cinerea, diploptera punctata, and blaberus discoidalis and in the mantids litaneuria minor and tenodera aridi ... | 1992 | 1613132 |
| a comparative study of leucokinin-immunoreactive neurons in insects. | antisera were raised against leucokinin iv, a member of the leucokinin peptide family. immunohistochemical localization of leucokinin immunoreactivity in the brain of the cockroach nauphoeta cinerea revealed neurosecretory cells in the pars intercerebralis and pars lateralis, several bilateral pairs of interneurons in the protocerebrum, and a group of interneurons in the optic lobe. several immunoreactive interneurons were found in the thoracic ganglia, while the abdominal ganglia contained prom ... | 1994 | 7910521 |
| the effect of ions, ion channel blockers, and ionophores on uptake of vitellogenin into cockroach follicles. | since calcium plays an important role in vitellogenin binding and uptake in nauphoeta cinerea and because calcium channels have been described in follicles of this species, we investigated the effect of various ions, ionophores, and ion channel blockers on vitellogenin uptake in vitro. calcium significantly stimulated vitellogenin uptake; this effect could be substituted best by barium and less well by strontium and magnesium. the stimulatory effect of calcium, and to a certain extent also that ... | 2008 | 2257971 |